.middle > div {
    border: 1px solid red;
}

.middle-content {
    padding: 10px;
}

.middle-content > div:first-child {
    display: flex;
    justify-content: center;
    text-align: center;
}

.middle-content > div:nth-child(2) {
    display: flex;
    justify-content: center;
}

.middle-content > div:nth-child(2) > div > div > div:nth-child(1) {
    line-height: 50px;
}

.middle-content > div:nth-child(2) > div > div > div:nth-child(2) {
    width: 600px;
    height: 50px;
    line-height: 50px;
    border: 1px dashed red;
    background-color: rgb(238, 238, 238);
    padding: 0 10px;
}

.middle-content > div:nth-child(2) > div > div:nth-child(3) > div:nth-child(2) {
    height: 150px;
    line-height: 30px;
}

.middle-content > div:nth-child(2) > div > div:last-child {
    display: flex;
    justify-content: center;
}

.middle-content > div:nth-child(2) > div > div:last-child > div {
    width: 200px;
    background-color: rgb(230, 145, 55);
    line-height: 40px;
    text-align: center;
    cursor: pointer;
    margin: 30px 0;
    color: white;
    border-radius: 45px;
    box-shadow: 1px 1px 1px 1px red;
}
